There were many, though, on both sides who felt that no glory came to aviation from methods of frightfulness and reprisals for such frightfulness and to the last there were instances of clean, brave fights. One of the last duels on the knightly lines of conduct was that in which Captain Immelman, “The Falcon” of the German army, met Captain Ball, one of the most brilliant airmen of the British Royal Flying Corps. Immelman had a record of some fifty-one British airplanes downed. Captain Ball wanted to wipe out this record, and the daring German at the same time; so one day he flew over the German lines and dropped the following note: “Captain Immelman: I challenge you to a man-to-man fight to take place this afternoon at two o’clock. I will meet you over the German lines. Have your anti-aircraft guns withhold their fire, while we decide which is the better man. The British guns will be silent. “Ball.” Ball was by that time quite renowned. The Germans were aware of his official record. He had taken part in twenty-six combats, had destroyed eleven hostile machines, driven two out of control, and forced several others to land. In these combats Captain Ball had gone up alone. On one occasion he had fought six hostile machines, twice he had fought five machines, and once four. When leading two other British aeroplanes he had attacked an enemy formation of eight. On each of these occasions he had brought down at least one enemy. The Germans knew all that, but evidently Ball had picked an opponent worthy of him not only in skill but in courage and chivalry, for that day the answer to the note was dropped from a German machine: “Captain Ball: Your challenge is accepted. The guns will not interfere. I will meet you promptly at two. “Immelman.” CHEERS FROM OPPOSING TRENCHES Far and wide along the trenches the word was spread. Firing stopped as though a flag of truce had been hoisted. Germans and English left covers and sought positions of vantage from which to watch the battle royal. At the appointed time both flyers rose promptly and made their way over “No Man’s Land.” “Cheering arose,” relates an eye-witness. “There were wild cheers for Ball. The Germans yelled just as vigorously for Immelman. “The cheers from the trenches continued; the Germans’ increased in volume; ours changed into cries of alarm.”